When UA introduced The Original Boxerjock® boxer briefs, all other men's underwear was soon rendered obsolete. This underwear is built from UA's smooth, sleek HeatGear® fabric for the best performance. The signature Moisture Transport System keeps you cool, the 4-Way Stretch keeps you moving, and the Anti-Odor technology keeps you fresh. Forget your old boxer briefs that bunch up, wear out, or lose shape. The Original Boxerjock® 9" underwear stretches, recovers, and fits exactly how you want it to.